How to get full screen

[NVII]

I recently made a new vm and i forgot how i got full screen on my previous one. I remember that it started with sh /etc/media.... but i cant remember the rest. If anyone nows the rest of this line or has another way to access full screen your help would b most appriciated

[mpack]

You install the Guest Additions - assuming it's a supported guest OS. Full screen is one of the features they provide.